Bunch building mechanism for spinning frames



Nov. 3, 193 1. A. SMITH 1,830,339

BUNCH BUILDING MECHANISM FOR SPINNING FRAMES Filed July 16, 1930 3 Sheets-Sheet l INVENTOR.

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KAI cQE M A TTORNEYS.

Nov. 3, 1931. A. SMITH BUNCH BUILDING MECHANISM FOR SPINNING FRAMES Filed July 16, 1930 3 Sheets-Sheet 2 Nov. 3, 1931. A. SMITH BUNCH BUILDING MECHANISM FOR SPINNING FRAMES 3 sheets-sheet 5 Filed July 16, 1930 1 1 with a few preliminary turns of Weft or fill- 7 i ation b which a relatively slow traverse" mo- 3 1930; v 182 ments and'combinations of 'pants-whioh -w ill V, I *larly pointe d outfin the appended Claims.

rso spinning? 7' "'lookin I and comprising af trameloy-iacreel ll Patented Nov; 3,

. SMITH; or MILLBU-3Y, mnssnonusnrrs, -AssIGNoR 'ro WHITIN.MACHINEC;

PATIENT iorricgf rwonxsgor wnrrr nsv mn,.MAss oHUsEmsJA.coRroRATIoir or MASSACHUSETTS.

- tanner:BuinnmGjMEeHAmsi/rron'srmnmo FnAmEs 1 I n ncatios-miiiiuly is, I

filling 1 and for automatically shifting 1 to the I I regular filling wind after a"bunch of the de- .siredsize is produced. v

' A 1 further obj ejct is tojprovide' a construc- "tion-is provided during the winding of the i bunch and a rnuoh 'more. rapid traverse dur- 41 the regular filling wind. I

Myfpr'esent invention relates 1 particularly 'i '20'f1to.improvements'inthetype of bunch build- "My invention further relates to=v arrangebe hereinafter descr' ibed -andf more particuin thedrawingsginwhioh' r Fig.- 1 "is a"fro nty elevation of 'partsof i a fra'me' enibodyin'g my improve- Fig. 2 is "A 'prefeirecl formofithe inventiondsshown a partialend-elevation thereof,

giin the direction of the ar1'ow 2- l Fig,- 3 is] partial front elevation show in g certain of'the f p art'sin Fig, in a different position;

1 'F'gs. 4and 5are detail-seotional p'lan views j3respeotivelyjm' i p I Figs- 6 is a detail sectional end elevation,

' a 1 takenalong' the' line"6'6" in%1lig. 4 and V Fig.7 is 'apartialside elevationof abobbin with aibunch woundthereon.

lteferring to the F drawingsfil have shown r parts of {spinning frame of -the 'cap' type 2) on whiohspoolsfsofroving are-sup.-

11 ormd,imda) plurality 1' of bobbins B sup 1 nported on'abobbin'rail'12. Upright was 13 "are 1 mounted f in 'fixed position on. a Z cap rail ca'psl5'aflixed to their upper: ends. The bobbinsi'B :aresrotated by bands 16 from' a 'driv-, in-g drum "17 (:Fig. 2) and the bobbin rail 12 is mounted onzlifter r0ds18iwhich' are vervticallyireciprocated.bygmechanism to be"de- -.-shor't-shaft 51; shaft/'51 and is engaged by a pinion 53 (Fig.

1930. sari-arm; 468,341.

3:4 and extend up: through the bobbins B, with p I .-.-scribed. windingsuchafprelinninarybunch (if weft or "The' yarn Y" is drawn around. thelower oo edges of thecaps 'and: is wound on-the rotating' bobbins,zthe yarn traverse being deste'nmined ibythe vertical reciprocation of the cbobbinsirelativeato 'the fixe'd caps 15; The roving is drawnirom' thesspools' S byupper oo drawing rolls F20, intermediate drawing rolls @212 and .delivery rolls '5 22. Suitable pressure rollers'r 23,i24 and 25 hold the yarn in contact -with3theseveral 'dralwingrolls 20, 21 and 22.

The machineis .provided'with a usual type of builder mechanism, which comprises a chain secured at one end to the lower -ien'd; ofiaa lifter rod i 18 and at 'the other end 7 ate a OBiStiDgIBIxtO which a horizontally exitending-z'rodi32 is attached. The casting 31' is mounted on orf'forms a part of a slidingv block 33, adapted to move parallel 'to the drum 17 along .guideways :34.

' ofa' builder screw 35 isrotatably mounted'inia'bearing 36 projecting up from the sliding b1ock 33;'andfa nut 37 is'mounted onaithe i screw 35' and is, also pivotally con- 'nected .1 at "38 :with a "bracket 39 secured I onithe si'dei'ofabuilder lever40. The lever40 is' mounted on affixed stud41 and supports a vbraclcet-f42' having a roll 43 mounted therewon. The roll43 engages oneiace or edge of an intermediate lever 44, swinging about 3. 'fixe'dipivot 45-and supporting a'ca n r011 46 enaagedbythbuilder cam 47 The'cam47 is mounted on a horizontal shaft 48 extending transversely of the spinr ning frame a-nd provided With-a Worm wheel .49 engaged by ax worm'50rotatable with a A gear 52 is mounted on the 2) rotatable with a fast'pulley 54. A loose pulleyi 55 and tight pulley 56 are mounted on on --tion 7 9;recessed to receive 'the'driving' mem- The shaft 48 previously describedlis provided with a worm (Fig. 2) engaging a worm gear 62 (Fig; 1) mounted on one end 1 ofia short shaft 63. A pinion 64 on the other end of the shaft v63/engages an intermediate or idle gear 65(Fig. ,"which in turn engages a gear 66 mounted to rotate with the builder screw 35. j I

- The stares islpref-erably mounted on a sleeve 67 slidable but non-rotatable uponthe shaft portion 68'ofthe builder screw'35. The sleeve 67 is provided-with a handiwheel 70,

by which itrma'y' b'e .inanually rotated: if de- ..sir ed.an d; the sleeve .67 is also provided with an annular groove 71to receive a latch 72. When itis desired to adjust the builder'screw 35 manually, the latch72 is raised and the sleeve 67 ismoved endwise to disengage'the w gear 66 from the intermediate gear 65.

By theconnecti-ons above described,- the builder screw 35. is normallyl'rotated"atslow speed and in definite speed relation to the revolutions of the builder-cam 47. Rot-a- *tion' of the builder screw varies the. distance between the sliding'block; 33 and the builder.

lever 40 and thus permits vthe"block*33 to move towardtheright in Fig. '1, thus lowering the bobbin rail 12 and causing the yarn traverse to be shifted progressively upward toward the tips of the bobbins. 1 I

S'Zot'u $7 0661 traverse motion I In presentapplication I provide additional driving connections between the cylin der shaft-57 and the shaft 51 through which the builder cam is rotated. 9

I The gear;53 and pulleyx54 previouslyd'escribed are secu'redto a sleeve 75' (Fig. 4) loosely rotatable on a stud 76 and held thereon by a collar. 7 7 The stud 76 isfclamped in fixed pos'ition in the frame.

Az-large'pulley 78 is loosely mounted on the sleeve 75 andis provided with 'ahub. por- .ber'80 ofa ball clutch, the member 80 being A fixed to the sleeve 75. 'A plurality ofrolls or balls 81 are mounted in recesses 82 in the member 80 and are pressed-outward to engage the inner face of the hub 79 by springs 83. WVhen the hub 79 is rotated in a clockj wise direction. as viewed in Fig. 6, the rolls or balls 81 will actto clutch the hub to the 60 innermember-80 andthus rotate the sleeve.

75. pulley54 and pinion 53. 1

The pulley 78 is driven by a belt '85 from a small pulley 86 (Fig; fixed a the end: Y of the cylinder shaft'57. T l I 65 With this constructiomit will bea'pparent the pposite direction;

that the large pulley 7 Swill be continuously rotated at relatively slow speed by'the belt 85 and small driving pulley 86 on the cylinder shaft. If the belt 58 islon the loose 'pul- 'ley 55 (as shown in Fig. 1),fthe driving.

pinion 53 willbe rotated-very slowly by the large pulley .7 8 throughthe balLc lutch above described. If however, the belt 58 is on the tight pulley 56 (as shown. in 3), the pulley 54 willbe rotated at higher speed than the large pulley. 8 and the "clutch member 80 will be correspondingly increased.

Briefly summarized; theoperation is that i the builder cam will be driven at normal speed "whenever the belt58 is on the tight pulley 56 but will be driven at much slower ,speed'by the pulley-78pwhensver the belt 58 ison the loose pulley 55. .3 1

'omitrolftcokanswt I will now describe ;-the(mechanism by which the belt-58' is shifted from the bunch windingposition'shown in Fig.1,tothe normal-traverse position shown in Fig- 3, For this purpose, an irregular worn' 95 is mounted on one of the upper drawing-roll shafts 20=and is continuouslyrotated therewith. A belt shifting fork 96: (Figs. 2 and3) is slidable on a fixed stud 97 and hasa rearwardly projecting portion 98 loosely held by aforked member 99. mounted at the lower end of a shipper lever 102. The lever 102 is pivoted at 103 and has an upper end portion 104 extending adjacentthe worm 95. The

portion 104 is hinged ,at 105 to thelever 102 and is free to swing toward. the axis-of. the drawin roll shaft 20. A stop screw: 106 (Fig. '23 is provided for limiting the swingmg. movement of the .member 104.

and .is provided-with a stud -108 norn1'ally seated in thespiral groove of the worm 95.

A stop 109 limits theswing-ingmovement of the shipper. lever to the leftin Fig. 1, and a disc 110 on. the end of the drawing-roll shaft 20 limits swinging movement of the lever in The method of operation of the belt shipping mechanism is'asfollows 1 When the spinningframefis to beidoded;

the frame is stopped withthe roll 46 on the point of the cam 47. The'latfch 72 is then raised the gear 66 is disengaged and the builder screw 3,5 is rotated to raise thebobbin rail 12 to its extreme upper limit of trfavel' At thesame time, the member 104 forming theupper portionvofthe shipper lever '102 is lifted out of contact with the worm 75 and is swungjto theleftagainst thestop 109 as shown in Fig.1. The gear 66 is A collar 107 is mounted on the member 104 V then returned-to operative position and the spinning frame is started up, but with belt 58 on the; loose pulley55. V V V Asipreviouslyldesoribed the builder cam the i 'will be rotated at very slow speed under these conditions by the belt 85 and large pulley 78. 1 Q

As the worm 95 rotates with the drawing roll shaft 20, the member.104 is gradually swung to the right in Fig. l and the forked 1 "connection vstud'98; I

7 After the worm. 95 has made a predeter member 99 at the bottom of the shipper lever 102 is swung to the left. The slotted opening in the member 99 is substantially wider than the diameter of the stud 98' on the shipper fork and consequently the img tial swinging movement of the shipper lever I merely takes up thelost motion in the slotted, between the member 99' and the mined number ofrevolution's, the studlOS enters an abruptlysloped portion 112,,of the worm 95 and is'thrown quickly to the right, shifting the belt 58 to the tight pulley "56.

' The collar 107 on the shipper lever portion 104 then drops into the annular space between the end of the worm 95 and the disc 110, where it is retained duringthe continued operation of the spinning'fr'ame.

Y "As soon as the belt 58 is shifted to the tightpully 56,the builder cam will be thereafter rotated at normal speed and the yarn will be I traversed much more rapidly on the bobbins.

The worm 95 is so designed that the drawingrollshaft 20 will make the desired num- I '7 ber ofrevolutions before the-builder motion is rendered operative; .The initial position I Y of the lever portion 104 may be varied by adjusting the stop109. j ,5 The slow initial traverse of the yarn 'dur-.

tug-the bunch building operation produces a 1 somewhat elongated bunch, as indicated at wound is much less liable to catch and break the filling than a bunch which is deposited en- 7 tirely at one point on the vbobbin,as with my previous construction, I

I have thus provided .an exceedingly simple and reliable attachment foran ordinary builder motion by which the motion is made i.

o to operate very slowly for a predetermined jope'ration of the spinning mechanismyafter which the builder motion operates in the 11511 al manner. No changewhatever is necessary in the construction of thebuilder motionitself, in which respect my bunch building at- "ta'chment is superiorto many prior devices ffor this purpose.

Having thus described imy invention and the advantages thereof, I do not wish to be V VI claim is limited to the details, herein disclosed, otherwisethan as set forth in the claims, but what 1. In a spinning frame',.builder mechanism including a builder cam, actuating means [Ics therefor including-a driving shaft, means to rotate said shaft at relatively low, speed,

means torotate said shaft at-relatively high speed, .a belt shiftable to effect high speed or render the high speed drive operative after a predetermined period of operationof the low speed drive, said automatic meansincluding a belt shifting member, a lever having a lost motion connection to said member, and a worm engaging said lever and having successive threaded portions of fine pitch and coarse pitch respectively, said lever being 'moved by said fine pitch threadsto take up fixed my signature. ALLEN SMITH.

j V B in Fig. 7, and it is found that abunch thus 1 I 40 low speed actuation, and automatic means to 

